simplifying some things for simplicity

Gaze/Constants/EyeTrackingConstants.swift

@@ -5,15 +5,10 @@
 //  Created by Mike Freno on 1/14/26.
 //
 
-import Combine
 import Foundation
 
 /// Thread-safe configuration holder for eye tracking thresholds.
-/// Uses @unchecked Sendable because all access is via the shared singleton
-/// and the @Published properties are only mutated from the main thread.
-final class EyeTrackingConstants: ObservableObject, @unchecked Sendable {
-    static let shared = EyeTrackingConstants()
-    
+enum EyeTrackingConstants {
     // MARK: - Logging
     /// Interval between log messages in seconds
     static let logInterval: TimeInterval = 0.5
@@ -21,67 +16,49 @@ final class EyeTrackingConstants: ObservableObject, @unchecked Sendable {
     // MARK: - Eye Closure Detection
     /// Threshold for eye closure (smaller value means eye must be more closed to trigger)
     /// Range: 0.0 to 1.0 (approximate eye opening ratio)
-    @Published var eyeClosedThreshold: CGFloat = 0.02
-    @Published var eyeClosedEnabled: Bool = true
+    static let eyeClosedThreshold: CGFloat = 0.02
+    static let eyeClosedEnabled: Bool = true
 
     // MARK: - Face Pose Thresholds
     /// Maximum yaw (left/right head turn) in radians before considering user looking away
     /// 0.20 radians ≈ 11.5 degrees (Tightened from 0.35)
     /// NOTE: Vision Framework often provides unreliable yaw/pitch on macOS - disabled by default
-    @Published var yawThreshold: Double = 0.3
-    @Published var yawEnabled: Bool = false
+    static let yawThreshold: Double = 0.3
+    static let yawEnabled: Bool = false
 
     /// Pitch threshold for looking UP (above screen).
     /// Since camera is at top, looking at screen is negative pitch.
     /// Values > 0.1 imply looking straight ahead or up (away from screen).
     /// NOTE: Vision Framework often doesn't provide pitch data on macOS - disabled by default
-    @Published var pitchUpThreshold: Double = 0.1
-    @Published var pitchUpEnabled: Bool = false
+    static let pitchUpThreshold: Double = 0.1
+    static let pitchUpEnabled: Bool = false
 
     /// Pitch threshold for looking DOWN (at keyboard/lap).
     /// Values < -0.45 imply looking too far down.
     /// NOTE: Vision Framework often doesn't provide pitch data on macOS - disabled by default
-    @Published var pitchDownThreshold: Double = -0.45
-    @Published var pitchDownEnabled: Bool = false
+    static let pitchDownThreshold: Double = -0.45
+    static let pitchDownEnabled: Bool = false
 
     // MARK: - Pupil Tracking Thresholds
     /// Minimum horizontal pupil ratio (0.0 = right edge, 1.0 = left edge)
     /// Values below this are considered looking right (camera view)
     /// Tightened to 0.35 based on observed values (typically 0.31-0.47)
-    @Published var minPupilRatio: Double = 0.35
-    @Published var minPupilEnabled: Bool = true
+    static let minPupilRatio: Double = 0.35
+    static let minPupilEnabled: Bool = true
 
     /// Maximum horizontal pupil ratio
     /// Values above this are considered looking left (camera view)
     /// Tightened to 0.45 based on observed values (typically 0.31-0.47)
-    @Published var maxPupilRatio: Double = 0.45
-    @Published var maxPupilEnabled: Bool = true
-    
+    static let maxPupilRatio: Double = 0.45
+    static let maxPupilEnabled: Bool = true
+
     // MARK: - Pixel-Based Gaze Detection Thresholds
     /// Python GazeTracking thresholds for pixel-based pupil detection
     /// Formula: pupilX / (eyeCenterX * 2 - 10)
     /// Looking right: ratio ≤ 0.35
     /// Looking center: 0.35 < ratio < 0.65
     /// Looking left: ratio ≥ 0.65
-    @Published var pixelGazeMinRatio: Double = 0.35  // Looking right threshold
-    @Published var pixelGazeMaxRatio: Double = 0.65  // Looking left threshold
-    @Published var pixelGazeEnabled: Bool = true
-    
-    private init() {}
-    
-    // MARK: - Reset to Defaults
-    func resetToDefaults() {
-        eyeClosedThreshold = 0.02
-        eyeClosedEnabled = true
-        yawThreshold = 0.3
-        yawEnabled = false  // Disabled by default - Vision Framework unreliable on macOS
-        pitchUpThreshold = 0.1
-        pitchUpEnabled = false  // Disabled by default - often not available on macOS
-        pitchDownThreshold = -0.45
-        pitchDownEnabled = false  // Disabled by default - often not available on macOS
-        minPupilRatio = 0.35
-        minPupilEnabled = true
-        maxPupilRatio = 0.45
-        maxPupilEnabled = true
-    }
+    static let pixelGazeMinRatio: Double = 0.35  // Looking right threshold
+    static let pixelGazeMaxRatio: Double = 0.65  // Looking left threshold
+    static let pixelGazeEnabled: Bool = true
 }